查看样本合金摘要数据表（PDF）自1952年以来，合金摘要一直是世界各地使用的金属和合金材料性能数据的主要参考。以图表、图表和表格为特色，这些表格给出了有关成分或特性、物理和机械性能、热处理和可加工性的事实和数字。CARPENTER 21-12是一种奥氏体铬镍不锈钢，为排气阀应用提供了高温强度和耐腐蚀性的完美结合。它被广泛用作柴油机和汽油机两件式气门的缸盖材料。

View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.CARPENTER 21-12 is an austenitic chromium-nickel stainless steel which offers an excellent combination of high-temperature strength and corrosion resistance for exhaust valve applications. It is used widely as the head material in two-piece valves for both diesel and gasoline engines.